
Colorblindness May Obscure Bladder Cancer Clues and Raise Mortality Risk
Stanford Medicine analyzed large electronic health records via the TriNetX platform and found colorblind individuals diagnosed with bladder cancer had a 52% higher risk of death over 20 years compared with color-normal patients, likely due to delayed detection of blood in urine. The effect was not seen for colorectal cancer. The study suggests clinicians consider color vision differences in screening and encourage urine testing when suspicion arises; the researchers note possible undercounting and call for further investigation.






